“And further, observing that all this indeterminate substance is in motion, and that no true predication can be made of that which changes, they supposed that it is impossible to make any true statement about that which is in all ways and entirely changeable. For it was from this supposition that there blossomed forth the most extreme view of those which we have mentioned, that of the professed followers of Heraclitus, and such as Cratylus held, who ended by thinking that one need not say anything, and only moved his finger; and who criticized Heraclitus for saying that one cannot enter the same river twice, for he himself held that it cannot be done even once.”

“The investigation of the truth is in one way hard, in another easy. An indication of this is found in the fact that no one is able to attain the truth adequately, while, on the other hand, no one fails entirely, but everyone says something true about the nature of all things, and while individually they contribute little or nothing to the truth, by the union of all a considerable amount is amassed.”

“He who cannot be a good follower cannot be a good leader.”

“Impossible, I realize, to enter another’s solitude. If it is true that we can ever come to know another human being, even to a small degree, it is only to the extent that he is willing to make himself known. A man will say: I am cold. Or else he will say nothing, and we will see him shivering. Either way, we will know that he is cold. But what of the man who says nothing and does not shiver? Where all is intractable, here all is hermetic and evasive, one can do no more than observe. But whether one can make sense of what he observes is another matter entirely”

“The only stable state is the one in which all men are equal before the law.”

“For man, when perfected, is the best of animals, but, when separated from law and justice, he is the worst of all; since armed injustice is the more dangerous, and he is equipped at birth with the arms of intelligence and with moral qualities which he may use for the worst ends. Wherefore, if he have not virtue, he is the most unholy and the most savage of animals, and the most full of lust and gluttony. But justice is the bond of men in states, and the administration of justice, which is the determination of what is just, is the principle of order in political society.”

“That becomes clear if you try to define the objects and things which supervene in each class. Odd and even, straight and curved, number, line, and shape can be defined without change but flesh, bone, and man cannot. They are like sbub nose, not like curved.”